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1 <?php
2 /**
3  * A NetworkPackageWriter task
4  *
5  * @author              Roland Haeder <webmaster@ship-simu.org>
6  * @version             0.0.0
7  * @copyright   Copyright (c) 2007, 2008 Roland Haeder, 2009, 2010 Hub Developer Team
8  * @license             GNU GPL 3.0 or any newer version
9  * @link                http://www.ship-simu.org
10  *
11  * This program is free software: you can redistribute it and/or modify
12  * it under the terms of the GNU General Public License as published by
13  * the Free Software Foundation, either version 3 of the License, or
14  * (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  * GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
23  */
24 class NetworkPackageWriterTask extends BaseTask implements Taskable, Visitable {
25         /**
26          * Protected constructor
27          *
28          * @return      void
29          */
30         protected function __construct () {
31                 // Call parent constructor
32                 parent::__construct(__CLASS__);
33         }
34
35         /**
36          * Creates an instance of this class
37          *
38          * @return      $taskInstance   An instance of a Visitable class
39          */
40         public static final function createNetworkPackageWriterTask () {
41                 // Get new instance
42                 $taskInstance = new NetworkPackageWriterTask();
43
44                 // Return the prepared instance
45                 return $taskInstance;
46         }
47
48         /**
49          * Accepts the visitor to process the visit "request"
50          *
51          * @param       $visitorInstance        An instance of a Visitor class
52          * @return      void
53          */
54         public function accept (Visitor $visitorInstance) {
55                 // Visit this task
56                 $visitorInstance->visitTask($this);
57         }
58
59         /**
60          * Executes the task
61          *
62          * @return      void
63          */
64         public function executeTask () {
65                 // Get a singleton network package instance
66                 $packageInstance = NetworkPackageFactory::createNetworkPackageInstance();
67
68                 // Do we have something to deliver?
69                 if ($packageInstance->isPackageEnqueued()) {
70                         // Okay, then deliver (better discover its recipients) this package
71                         $packageInstance->declareEnqueuedPackage();
72                 } elseif ($packageInstance->isPackageDeclared()) {
73                         // Prepare package for delivery
74                         $packageInstance->deliverDeclaredPackage();
75                 } elseif ($packageInstance->isPackageWaitingDelivery()) {
76                         // Sent it finally out
77                         $packageInstance->sendWaitingPackage();
78                 }
79         }
80 }
81
82 // [EOF]
83 ?>